Using endothelial nitric oxide synthase gene polymorphisms to identify intracranial aneurysms more prone to rupture in Japanese patients

Boris Krischek, Hidetoshi Kasuya, Hiroyuki Akagawa, Atsushi Tajima, Akira Narita, Hideaki Onda, Tomokatsu Hori, Ituro Inoue

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Object. Recent investigators found that the presence of three tandem polymorphisms of the endothelial nitric oxide synthase (eNOS) gene - promoter single nucleotide polymorphism (SNP) T-786C, intron-4 27-bp variable number of tandem repeats, and the G894T SNP in exon 7 - was indicative of intracranial aneurysms more prone to rupture in a Caucasian patient sample. In the present study, the authors sought to determine whether the presence of these eNOS polymorphisms could indicate which Japanese patients with aneurysms were more endangered by a subarachnoid hemorrhage (SAH). Methods. The three eNOS polymorphisms were genotyped in 297 patients with ruptured aneurysms (RAs), 108 patients with unruptured aneurysms (UAs), and 176 healthy volunteers by using polymerase chain reaction. The distribution of the variant alleles did not differ significantly (p > 0.05) between the RA group and the UA group. The frequency of the corresponding genotypes between the two groups and a haplotype analysis did not show any significant differences. Further comparisons of the RA and UA groups with the control group did not yield any significant allele or genotype frequency differences. Conclusions. These data show that the examined set of eNOS polymorphisms were not indicative of which Japanese patients with intracranial aneurysms would suffer an SAH. The presence of eNOS polymorphisms is not useful in identifying intracranial aneurysms that are more prone to rupture in a Japanese patient sample.

Original languageEnglish
Pages (from-to)717-722
Number of pages6
JournalJournal of neurosurgery
Volume105
Issue number5
DOIs
Publication statusPublished - 2006 Nov
Externally publishedYes

Keywords

  • Endothelial nitric oxide synthase gene
  • Genetic polymorphism
  • Intracranial aneurysm
  • NOS3
  • Single nucleotide polymorphism
  • Subarachnoid hemorrhage

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

Fingerprint

Dive into the research topics of 'Using endothelial nitric oxide synthase gene polymorphisms to identify intracranial aneurysms more prone to rupture in Japanese patients'. Together they form a unique fingerprint.

Cite this